468 MR. d, BENTHAM ON COMPOSITAE. 
so much pronounced, prevails in the allied genera Serratula, about 
thirty species, and Zricholepis, seven species; but a very percep- 
tible difference in the involucral scales gives them a different habit, 
and their geographical range is not quite the same; they are more 
northern and eastern, and not quite so Mediterranean. Serratula 
itself is, moreover, somewhat exceptional in the tribe by the great 
reduction or almost total suppression of the tails or appendages 
to the anther-auricles. This genus extends over the whole of 
Europe and temperate Asia, but is not in America. Zricholepis 
is exclusively Asiatic. 
Myopordon is a monotypic Persian genus of which the affinities 
are as yet very uncertain. It is evidently near. the Centaurea 
with spinous involucres ; but the areola at the point of attachment 
of the achene seems to be quite basal; the specimens, however, are 
imperfect. 
The Saussurea group of genera have the basal scar to the achenes 
of the Cnicus series; but their filaments are always glabrous and 
free, and their involucral bracts, having neither the prickles of the 
majority of the Onicus series nor the scarious appendages so 
frequent in Centaurea, give to the plants a very different facies. 
Saussurea itself, about sixty species, is also distinguished by the 
pappus, either with a single row of sete or the external sete 
comparatively few, fine, and short. Geographically it is of a much 
more mountainous character, with some species consequently of a 
much wider range than most Cynaroidee. It has several high- 
Alpine or Arctic species, and extends over Europe, extratropical 
Asia, and rather high northern America: two or three species 
descend in Asia to within the tropics; and one of these Asiatic 
species has extended itself into eastern Australia to the utmost 
limits of, and even beyond the tropical region. 
Stehelina, six species (including possibly the monotypic 
-Kechlea), is, as it were, the Mediterranean representative of 
Saussurea, and has also a single-rowed pappus, but of a somewhat 
different texture, and the setze mostly united in pairs or in bundles. 
It is limited to the Mediterranean region. 
Jurinea, about forty species, has much of the aspect of Saussurea, 
and is divisible, chiefly according to inflorescence, into sections 
corresponding to those of Saussurea, some of them, perhaps, rather 
more distinct; and one, ZEgopordon of Boissier, with the set» of 
the receptacle almost as much reduced as in Onopordon and Be- 
rardia, might, perhaps, be retained as a monotypic genus. As a 
